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Title:

Evaluation of Airfield Pavements at Denver International Airport Using the Rolling Dynamic Deflectometer and Second-Generation Rolling Sensors

Accession Number:

01125404

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

The Rolling Dynamic Deflectometer (RDD) is a nondestructive, deflection-based device that is used to evaluate structural conditions of pavements. The RDD has previously been used to evaluate pavements at airfields of all sizes, such as Dallas-Fort Worth, Atlanta Hartsfield-Jackson, Seattle-Tacoma, Fort Worth Mecham, Fort Worth Alliance, Greenville (Texas) and Grayson County (Texas). The RDD is a powerful tool that provides continuous deflection profiles. RDD testing had been previously limited to a testing speed of 1.6 km/h. This limiting speed is controlled by the rolling sensors used to measure the deflections from the applied dynamic loading. Second-generation RDD rolling sensors were developed to increase the limiting speed. The second-generation rolling sensors use larger-diameter wheels that are less sensitive to rough surfaces and an additional hold-down force which ensures the sensors maintain contact with the pavement at higher testing speeds of 2.4 to 4.8 km/h, depending on the pavement type. In this paper, the development of the second-generation rolling sensors is discussed and their application at the Denver International Airport (DIA) is presented. At DIA, the RDD deflection data were used to assess the overall stiffness of the runway pavements and evaluate the load-transfer characteristics at every joint and crack along the testing paths. RDD deflection profiles were also used to identify both typical and critical areas for additional investigation at discrete location using a Heavy Weight Deflectometer (HWD). The HWD data allowed an additional comparison between the RDD and HWD and verification of the performance of the second-generation rolling sensors.

Monograph Accession #:

01120148

Report/Paper Numbers:

09-0947

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Nam, Boo Hyun
Lee, Jeffrey L.Y.
Turner, Dennis J
Stokoe, Kenneth H
McNerney, Michael T
Chang, George K

Pagination:

22p

Publication Date:

2009

Conference:

Transportation Research Board 88th Annual Meeting

Location: Washington DC, United States
Date: 2009-1-11 to 2009-1-15
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Photos; References (13)

Identifier Terms:

Denver International Airport

Geographic Terms:

Denver (Colorado)

Subject Areas:

Aviation; Pavements; I22: Design of Pavements, Railways and Guideways

Source Data:

Transportation Research Board Annual Meeting 2009 Paper #09-0947

Files:

TRIS, TRB

Created Date:

Jan 30 2009 5:12PM